Skip to main content

Simulation of dynamic gauge widening and rail roll: effects on derailment and rolling contact fatigue

Buy Article:

$63.00 plus tax (Refund Policy)


This paper compares the different effects of rail rotations versus rail lateral translations on wheel/rail (W/R) contact geometry and vehicle dynamic performance. This study, conducted by the Transportation Technology Center, Inc. (TTCI), shows that: rail rotation has significant effects on the W/R contact geometry, especially on contact positions and contact areas, while rail translation effects on wheel contact positions and contact areas are negligible; a W/R contact model with assumptions of rigid track or elastic track with only lateral and vertical rail translations cannot reflect the W/R contact geometry variations caused by rail rotations; the contact geometry variations caused by rail rotations strongly depend on the specific wheel and rail profiles under evaluation; proper rail rotation flexibilities within the safety limits could improve wheelset steering performance and decrease W/R contact stress and wear.

Keywords: NUCARSĀ®; gauge spreading; rail rotation; track models; wheel/rail contact

Document Type: Research Article


Affiliations: Transportation Technology Center, Inc. Pueblo, Colorado, USA

Publication date: 2008-09-01

  • Access Key
  • Free ContentFree content
  • Partial Free ContentPartial Free content
  • New ContentNew content
  • Open Access ContentOpen access content
  • Partial Open Access ContentPartial Open access content
  • Subscribed ContentSubscribed content
  • Partial Subscribed ContentPartial Subscribed content
  • Free Trial ContentFree trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more